PSG have already been fined for financial doping, now they are said to bid 50m for Luiz. They already have 30m Marquinos and 40m Silva! Seems FFP is not stopping them http://www.mirror.co.uk/sport/football/news/chelsea-transfers-david-luiz-psg-3592331
PSG can spend what the want but all that will happen is they will be banned. No ifs or buts. Uefa showed their hand and others have accepted it. PSG have said **** off uefa. UEFA just need to delete PSG from their records ( UEFA members records ) and PSG effectively do not exist anymore. What do PSG do then? Have a cry..... thats about it. UEFAs competition, UEFAs rules. No court can or will overturn any FFP based suspension.